| . | After the engines have started, and the isolation valve is closed, you see the APU BLEED EICAS message and the APU valve light on. Why? |
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Because you havn't pushed the power up far enough yet. |
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Because the bleed valve has closed due to system logic and either the APU has not been shut down (or the APU bleed switch has not been selected off - not our procedure). |
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It doesn't matter - return to the gate and call for maintenence to fix the problem. |
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I never use the APU for engine start. |